Shooter94 Posted September 26, 2016 Share Posted September 26, 2016 Just got my STI Trubor and started loading this week and shot some today as I shot about 100 rounds this week looking for a load and worked up to 7.4 grains of power pistol with a 124 gr hornaday fmj bullet seated out to 1.155. As I was practicing today with my new gun it locked back and the slide was stuck but not too tight but the guide Rod was snug to the compensator. Has anyone had this problem or know if I have too much powder or what would cause this? Any input is very appreciatited Link to comment Share on other sites More sharing options...
Bkreutz Posted September 26, 2016 Share Posted September 26, 2016 Mine did the same thing, once it cooled down it was fine, another 20 shots and the slide stuck 3/4 of the way back. Now I have over 1K through it, that problem has gone away. (It's not broken it yet, shoot some more with lots of lube) Link to comment Share on other sites More sharing options...
Shooter94 Posted September 26, 2016 Author Share Posted September 26, 2016 (edited) Was just getting worried haven't even touched major power factor yet and having problems what load are you shooting? Edited September 26, 2016 by Shooter94 Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted September 26, 2016 Share Posted September 26, 2016 1 hour ago, Shooter94 said: 7.4 grains of power pistol with a 124 gr hornaday fmj bullet seated out to 1.155. What velocity did you get? How do the primers look? Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted September 26, 2016 Share Posted September 26, 2016 (edited) 1 hour ago, Shooter94 said: 7.4 grains of power pistol with a 124 gr hornaday fmj bullet seated out to 1.155. Sorry, duplicate. Edited September 26, 2016 by Hi-Power Jack delete Link to comment Share on other sites More sharing options...
Shooter94 Posted September 26, 2016 Author Share Posted September 26, 2016 1270 and no pressure signs Link to comment Share on other sites More sharing options...
Bkreutz Posted September 26, 2016 Share Posted September 26, 2016 4 hours ago, Shooter94 said: Was just getting worried haven't even touched major power factor yet and having problems what load are you shooting? I'm shooting 124 w/ 6.8 Autocomp for a 172 PF Link to comment Share on other sites More sharing options...
Tino2212 Posted September 26, 2016 Share Posted September 26, 2016 9 hours ago, Shooter94 said: 1270 and no pressure signs Oke so you need to put in more powder , but i would load them longer 1.165 or even longer than that . i load my 9 Majors at 1.185 to reduce pressure so i can use more powder ( i use N350 or HS6 )for more gas to work the comp . First check if this fits your chamber by plunk test ! Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted September 26, 2016 Share Posted September 26, 2016 I may be wrong, but can't imagine that load is going to be too potent ... Can't imagine that more powder, or a different powder would help, either.. Just to be straight, you've fired hundreds of these identical rounds thru this gun, not changed the load or the gun in any way, and one shot caused the slide to lock back, stuck lightly? Sounds like it might have been that one round causing all the problems? Has it occurred again? Link to comment Share on other sites More sharing options...
EEH Posted September 26, 2016 Share Posted September 26, 2016 Call STI, put that thing in a box send it back.. They will fix tune it,,free. Link to comment Share on other sites More sharing options...
Shooter94 Posted September 27, 2016 Author Share Posted September 27, 2016 Update on situation called dawson precison today and they said to shoot a lesser load to break it in and then try another powder if that dosent fix it. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted September 27, 2016 Share Posted September 27, 2016 My first OPEN gun was a Dawson Precision TruBor - about 10 years ago. It fired factory 9mm ammo when the gun was clean and well lubed, and I broke it in on PF167 loads. NEVER had the kind of problem you mentioned... Good luck with it. p.s. have you tried changing the recoil spring? Get a 9-10 lb spring in there and see what happens. Link to comment Share on other sites More sharing options...
Shooter94 Posted September 29, 2016 Author Share Posted September 29, 2016 Changed my load to auto comp and all my problems went away thanks for all the great advise. Link to comment Share on other sites More sharing options...
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